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Hu C, Zhao Q, Zang GL, Luo JT, Liu Q. Preparation and characterization of a novel Ni-doped TiO2 nanotube-modified inactive electrocatalytic electrode for the electrocatalytic degradation of phenol wastewater. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139758] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Viggor S, Jõesaar M, Soares-Castro P, Ilmjärv T, Santos PM, Kapley A, Kivisaar M. Microbial Metabolic Potential of Phenol Degradation in Wastewater Treatment Plant of Crude Oil Refinery: Analysis of Metagenomes and Characterization of Isolates. Microorganisms 2020; 8:E652. [PMID: 32365784 PMCID: PMC7285258 DOI: 10.3390/microorganisms8050652] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 01/30/2023] Open
Abstract
The drilling, processing and transportation of oil are the main sources of pollution in water and soil. The current work analyzes the microbial diversity and aromatic compounds degradation potential in the metagenomes of communities in the wastewater treatment plant (WWTP) of a crude oil refinery. By focusing on the degradation of phenol, we observed the involvement of diverse indigenous microbial communities at different steps of the WWTP. The anaerobic bacterial and archaeal genera were replaced by aerobic and facultative anaerobic bacteria through the biological treatment processes. The phyla Proteobacteria, Bacteroidetes and Planctomycetes were dominating at different stages of the treatment. Most of the established protein sequences of the phenol degradation key enzymes belonged to bacteria from the class Alphaproteobacteria. From 35 isolated strains, 14 were able to grow on aromatic compounds, whereas several phenolic compound-degrading strains also degraded aliphatic hydrocarbons. Two strains, Acinetobacter venetianus ICP1 and Pseudomonas oleovorans ICTN13, were able to degrade various aromatic and aliphatic pollutants and were further characterized by whole genome sequencing and cultivation experiments in the presence of phenol to ascertain their metabolic capacity in phenol degradation. When grown alone, the intermediates of catechol degradation, the meta or ortho pathways, accumulated into the growth environment of these strains. In the mixed cultures of the strains ICP1 and ICTN13, phenol was degraded via cooperation, in which the strain ICP1 was responsible for the adherence of cells and ICTN13 diminished the accumulation of toxic intermediates.
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Affiliation(s)
- Signe Viggor
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia; (M.J.); (T.I.); (M.K.)
| | - Merike Jõesaar
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia; (M.J.); (T.I.); (M.K.)
| | - Pedro Soares-Castro
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (P.S.-C.); (P.M.S.)
| | - Tanel Ilmjärv
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia; (M.J.); (T.I.); (M.K.)
| | - Pedro M. Santos
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (P.S.-C.); (P.M.S.)
| | - Atya Kapley
- Director’s Research Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, India;
| | - Maia Kivisaar
- Institute of Molecular and Cell Biology, University of Tartu, 23 Riia Street, 51010 Tartu, Estonia; (M.J.); (T.I.); (M.K.)
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Xiong L, Cao Y, Cooper R, Rappel WJ, Hasty J, Tsimring L. Flower-like patterns in multi-species bacterial colonies. eLife 2020; 9:e48885. [PMID: 31933477 PMCID: PMC6959979 DOI: 10.7554/elife.48885] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 11/16/2019] [Indexed: 11/13/2022] Open
Abstract
Diverse interactions among species within bacterial colonies lead to intricate spatiotemporal dynamics, which can affect their growth and survival. Here, we describe the emergence of complex structures in a colony grown from mixtures of motile and non-motile bacterial species on a soft agar surface. Time-lapse imaging shows that non-motile bacteria 'hitchhike' on the motile bacteria as the latter migrate outward. The non-motile bacteria accumulate at the boundary of the colony and trigger an instability that leaves behind striking flower-like patterns. The mechanism of the front instability governing this pattern formation is elucidated by a mathematical model for the frictional motion of the colony interface, with friction depending on the local concentration of the non-motile species. A more elaborate two-dimensional phase-field model that explicitly accounts for the interplay between growth, mechanical stress from the motile species, and friction provided by the non-motile species, fully reproduces the observed flower-like patterns.
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Affiliation(s)
- Liyang Xiong
- Department of PhysicsUniversity of California, San DiegoLa JollaUnited States
- BioCircuits InstituteUniversity of California, San DiegoLa JollaUnited States
| | - Yuansheng Cao
- Department of PhysicsUniversity of California, San DiegoLa JollaUnited States
| | - Robert Cooper
- BioCircuits InstituteUniversity of California, San DiegoLa JollaUnited States
| | - Wouter-Jan Rappel
- Department of PhysicsUniversity of California, San DiegoLa JollaUnited States
| | - Jeff Hasty
- BioCircuits InstituteUniversity of California, San DiegoLa JollaUnited States
- The San Diego Center for Systems BiologySan DiegoUnited States
- Molecular Biology Section, Division of Biological SciencesUniversity of California, San DiegoLa JollaUnited States
- Department of BioengineeringUniversity of California, San DiegoLa JollaUnited States
| | - Lev Tsimring
- BioCircuits InstituteUniversity of California, San DiegoLa JollaUnited States
- The San Diego Center for Systems BiologySan DiegoUnited States
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Quan Y, Wu H, Yin Z, Fang Y, Yin C. Effect of static magnetic field on trichloroethylene removal in a biotrickling filter. BIORESOURCE TECHNOLOGY 2017; 239:7-16. [PMID: 28500890 DOI: 10.1016/j.biortech.2017.04.121] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/25/2017] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
A laboratory-scale biotrickling filter combined with a magnetic field (MF-BTF) and a single BTF (S-BTF) were set up to treat trichloroethylene (TCE) gas. The influences of phenol alone and NaAc-phenol as co-substrates and different MF intensities were investigated. At low MF intensity, MF-BTF displayed better performance with 0.20g/L of phenol, 53.6-337.1mg/m3 of TCE, and empty bed residence times of 202.5s. The performances followed the order MF-BTF (60.0mT)>MF-BTF (30.0mT)>S-BTF (0mT)>MF-BTF (130.0mT), and the removal efficiencies (REs) and maximum elimination capacities (ECs) corresponded to: 92.2%-45.5%, 2656.8mg/m3h; 89.8%-37.2%, 2169.1mg/m3h; 89.8%-29.8%, 1967.7mg/m3h; 76.0%-20.8%, 1697.1mg/m3h, respectively. High-throughput sequencing indicated that the bacterial diversity was lower, whereas the relative abundances of Acinetobacter, Chryseobacterium, and Acidovorax were higher in MF-BTF. Results confirmed that a proper MF could improve TCE removal performance in BTF.
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Affiliation(s)
- Yue Quan
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji 133002, China; Department of Environmental Science, Agricultural College, Yanbian University, Yanji 133002, China
| | - Hao Wu
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Zhenhao Yin
- Analytical and Testing Center, Yanbian University, Yanji 133002, China
| | - Yingyu Fang
- Analytical and Testing Center, Yanbian University, Yanji 133002, China
| | - Chengri Yin
- Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji 133002, China.
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Saffarian A, Touchon M, Mulet C, Tournebize R, Passet V, Brisse S, Rocha EPC, Sansonetti PJ, Pédron T. Comparative genomic analysis of Acinetobacter strains isolated from murine colonic crypts. BMC Genomics 2017; 18:525. [PMID: 28697749 PMCID: PMC5505149 DOI: 10.1186/s12864-017-3925-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/06/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND A restricted set of aerobic bacteria dominated by the Acinetobacter genus was identified in murine intestinal colonic crypts. The vicinity of such bacteria with intestinal stem cells could indicate that they protect the crypt against cytotoxic and genotoxic signals. Genome analyses of these bacteria were performed to better appreciate their biodegradative capacities. RESULTS Two taxonomically different clusters of Acinetobacter were isolated from murine proximal colonic crypts, one was identified as A. modestus and the other as A. radioresistens. Their identification was performed through biochemical parameters and housekeeping gene sequencing. After selection of one strain of each cluster (A. modestus CM11G and A. radioresistens CM38.2), comparative genomic analysis was performed on whole-genome sequencing data. The antibiotic resistance pattern of these two strains is different, in line with the many genes involved in resistance to heavy metals identified in both genomes. Moreover whereas the operon benABCDE involved in benzoate metabolism is encoded by the two genomes, the operon antABC encoding the anthranilate dioxygenase, and the phenol hydroxylase gene cluster are absent in the A. modestus genomic sequence, indicating that the two strains have different capacities to metabolize xenobiotics. A common feature of the two strains is the presence of a type IV pili system, and the presence of genes encoding proteins pertaining to secretion systems such as Type I and Type II secretion systems. CONCLUSIONS Our comparative genomic analysis revealed that different Acinetobacter isolated from the same biological niche, even if they share a large majority of genes, possess unique features that could play a specific role in the protection of the intestinal crypt.
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Affiliation(s)
- Azadeh Saffarian
- Unité de Pathogénie Microbienne Moléculaire, INSERM U1202, Institut Pasteur, Paris, France
| | - Marie Touchon
- Unité de Génomique Evolutive des Microbes, CNRS, UMR3525, Institut Pasteur, Paris, France
| | - Céline Mulet
- Unité de Pathogénie Microbienne Moléculaire, INSERM U1202, Institut Pasteur, Paris, France
| | - Régis Tournebize
- Unité de Pathogénie Microbienne Moléculaire, INSERM U1202, Imagopole Citech, Institut Pasteur, Paris, France
| | - Virginie Passet
- Unité de Génomique Evolutive des Microbes, CNRS, UMR3525, Institut Pasteur, Paris, France
| | - Sylvain Brisse
- Unité de Génomique Evolutive des Microbes, CNRS, UMR3525, Institut Pasteur, Paris, France
| | - Eduardo P C Rocha
- Unité de Génomique Evolutive des Microbes, CNRS, UMR3525, Institut Pasteur, Paris, France
| | - Philippe J Sansonetti
- Unité de Pathogénie Microbienne Moléculaire, INSERM U1202, Institut Pasteur, Paris, France.,Chaire de Microbiologie et Maladies Infectieuses, Collège de France, Paris, France
| | - Thierry Pédron
- Unité de Pathogénie Microbienne Moléculaire, INSERM U1202, Institut Pasteur, Paris, France.
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Sharma V, Lin J. Draft genome sequence of phenol degrading Acinetobacter sp. Strain V2, isolated from oil contaminated soil. Braz J Microbiol 2016; 48:189-190. [PMID: 27932082 PMCID: PMC5470343 DOI: 10.1016/j.bjm.2016.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 04/12/2016] [Accepted: 06/09/2016] [Indexed: 11/30/2022] Open
Abstract
We report here the draft genome sequence of Acinetobacter sp. Strain V2 isolated from the oil contaminated soil collected from ENGEN, Amanzimtoti, South Africa. Degradation of phenolic compounds such as phenol, toluene, aniline etc. at 400ppm in 24h and oil degrading capability makes this organism an efficient multifunctional bioremediator. Genome sequencing of Acinetobacter spp. V2 was carried out on Illumina HiSeq 2000 platform (performed by the Beijing Genomics Institute [BGI], Shenzhen, China). The data obtained revealed 643 contigs with genome size of 4.0 Mb and G+C content of 38.59%.
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Affiliation(s)
- Vikas Sharma
- University of KwaZulu-Natal (Westville), School of Life Sciences, Department of Microbiology, Durban, South Africa
| | - Johnson Lin
- University of KwaZulu-Natal (Westville), School of Life Sciences, Department of Microbiology, Durban, South Africa.
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Lin J. Stress responses of Acinetobacter strain Y during phenol degradation. Arch Microbiol 2016; 199:365-375. [DOI: 10.1007/s00203-016-1310-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 08/10/2016] [Accepted: 10/17/2016] [Indexed: 12/14/2022]
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Pailhoriès H, Daure S, Eveillard M, Joly-Guillou ML, Kempf M. Using Vitek MALDI-TOF mass spectrometry to identify species belonging to the Acinetobacter calcoaceticus–Acinetobacter baumannii complex: a relevant alternative to molecular biology? Diagn Microbiol Infect Dis 2015. [DOI: 10.1016/j.diagmicrobio.2015.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Draft Genome Sequence of Acinetobacter calcoaceticus Strain GK1, a Hydrocarbon-Degrading Plant Growth-Promoting Rhizospheric Bacterium. GENOME ANNOUNCEMENTS 2015; 3:3/4/e00909-15. [PMID: 26272576 PMCID: PMC4536687 DOI: 10.1128/genomea.00909-15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The 3.94-Mb draft genome of Acinetobacter calcoaceticus GK1, a hydrocarbonoclastic plant growth-promoting Gram-negative rhizospheric bacterium, is presented here. Isolated at the Ford Motor Company site in Genk, Belgium, from poplar trees planted on a diesel-contaminated plume, GK1 is useful for enhancing hydrocarbon phytoremediation.
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Draft Genome Sequence of Acinetobacter calcoaceticus Strain P23, a Plant Growth-Promoting Bacterium of Duckweed. GENOME ANNOUNCEMENTS 2015; 3:3/1/e00026-15. [PMID: 25720680 PMCID: PMC4342421 DOI: 10.1128/genomea.00026-15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Acinetobacter calcoaceticus strain P23 is a plant growth-promoting bacterium, which was isolated from the surface of duckweed. We report here the draft genome sequence of strain P23. The genome data will serve as a valuable reference for understanding the molecular mechanism of plant growth promotion in aquatic plants.
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Jung J, Park W. Acinetobacter species as model microorganisms in environmental microbiology: current state and perspectives. Appl Microbiol Biotechnol 2015; 99:2533-48. [PMID: 25693672 DOI: 10.1007/s00253-015-6439-y] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/23/2015] [Accepted: 01/26/2015] [Indexed: 01/11/2023]
Abstract
Acinetobacter occupies an important position in nature because of its ubiquitous presence in diverse environments such as soils, fresh water, oceans, sediments, and contaminated sites. Versatile metabolic characteristics allow species of this genus to catabolize a wide range of natural compounds, implying active participation in the nutrient cycle in the ecosystem. On the other hand, multi-drug-resistant Acinetobacter baumannii causing nosocomial infections with high mortality has been raising serious concerns in medicine. Due to the ecological and clinical importance of the genus, Acinetobacter was proposed as a model microorganism for environmental microbiological studies, pathogenicity tests, and industrial production of chemicals. For these reasons, Acinetobacter has attracted significant attention in scientific and biotechnological fields, but only limited research areas such as natural transformation and aromatic compound degradation have been intensively investigated, while important physiological characteristics including quorum sensing, motility, and stress response have been neglected. The aim of this review is to summarize the recent achievements in Acinetobacter research with a special focus on strain DR1 and to compare the similarities and differences between species or other genera. Research areas that require more attention in future research are also suggested.
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Affiliation(s)
- Jaejoon Jung
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, Republic of Korea
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Antunes LC, Visca P, Towner KJ. Acinetobacter baumannii: evolution of a global pathogen. Pathog Dis 2014; 71:292-301. [DOI: 10.1111/2049-632x.12125] [Citation(s) in RCA: 480] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 12/15/2013] [Accepted: 12/15/2013] [Indexed: 12/20/2022] Open
Affiliation(s)
| | - Paolo Visca
- Department of Sciences; Roma Tre University; Rome Italy
| | - Kevin J. Towner
- Department of Clinical Microbiology; Nottingham University Hospitals NHS Trust; Queen's Medical Centre; Nottingham UK
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Fondi M, Rizzi E, Emiliani G, Orlandini V, Berna L, Papaleo MC, Perrin E, Maida I, Corti G, De Bellis G, Baldi F, Dijkshoorn L, Vaneechoutte M, Fani R. The genome sequence of the hydrocarbon-degrading Acinetobacter venetianus VE-C3. Res Microbiol 2013; 164:439-49. [DOI: 10.1016/j.resmic.2013.03.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 03/08/2013] [Indexed: 01/29/2023]
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Identification of genes and pathways related to phenol degradation in metagenomic libraries from petroleum refinery wastewater. PLoS One 2013; 8:e61811. [PMID: 23637911 PMCID: PMC3630121 DOI: 10.1371/journal.pone.0061811] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Accepted: 03/18/2013] [Indexed: 11/19/2022] Open
Abstract
Two fosmid libraries, totaling 13,200 clones, were obtained from bioreactor sludge of petroleum refinery wastewater treatment system. The library screening based on PCR and biological activity assays revealed more than 400 positive clones for phenol degradation. From these, 100 clones were randomly selected for pyrosequencing in order to evaluate the genetic potential of the microorganisms present in wastewater treatment plant for biodegradation, focusing mainly on novel genes and pathways of phenol and aromatic compound degradation. The sequence analysis of selected clones yielded 129,635 reads at an estimated 17-fold coverage. The phylogenetic analysis showed Burkholderiales and Rhodocyclales as the most abundant orders among the selected fosmid clones. The MG-RAST analysis revealed a broad metabolic profile with important functions for wastewater treatment, including metabolism of aromatic compounds, nitrogen, sulphur and phosphorus. The predicted 2,276 proteins included phenol hydroxylases and cathecol 2,3- dioxygenases, involved in the catabolism of aromatic compounds, such as phenol, byphenol, benzoate and phenylpropanoid. The sequencing of one fosmid insert of 33 kb unraveled the gene that permitted the host, Escherichia coli EPI300, to grow in the presence of aromatic compounds. Additionally, the comparison of the whole fosmid sequence against bacterial genomes deposited in GenBank showed that about 90% of sequence showed no identity to known sequences of Proteobacteria deposited in the NCBI database. This study surveyed the functional potential of fosmid clones for aromatic compound degradation and contributed to our knowledge of the biodegradative capacity and pathways of microbial assemblages present in refinery wastewater treatment system.
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